The most abundant elements in the universe are hydrogen and helium, but there are also small but significant amounts of heavier elements in stars and planets and in our own bodies. Where did these heavy elements originate?
in nuclear fusion deep in the interiors of stars T/F
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Most of the earthquakes in japan are a result of one plate sinking over one another
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The most abundant elements in the universe are hydrogen and helium, but there are also small but sig...
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